Can opener



FIG. 1 is a top plan view of a can opener showing my new design; thebottom plan view being a mirror image thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left end elevational view thereof; and

FIG. 5 is a right end elevational view thereof.

The ornamental design for a can opener, as shown.